Specifications subject to change without notice. | USA 150702 | Page 1 of 2
CI-12, CI-24 Sensor for HVAC, BAS
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System
Information
Ceiling mount PIR occupancy sensor
12 VDC, 24 VAC or 24 VDC operation
360°, 1200 sq ft coverage
Interfaces directly with EMS or HVAC system
through an internal isolated relay
Low-profile design
DIP switch adjustable sensitivity, time and override
High immunity to RFI and EMI
UL and CUL listed; Five year warranty
INTEC’s CI-12 and CI-24 ceiling mount passive
infrared occupancy sensors reduce energy waste in unoccupied building spaces by
communicating occupancy to EMS and HVAC systems.
Operation
The CI-12 and CI-24 occupancy sensors integrate with building control systems via an internal
isolated relay. The isolated relay has normally open and normally closed outputs and is rated
for 1 Amp at 24 VAC/VDC. The CI-12 connects directly to 12 VDC building control systems
and the CI-24 connects to 24 VAC or 24 VDC building control systems. Power pack use is not
necessary. The sensors provide a normally open or closed contact to the building control
system when occupancy is detected within the controlled area. When occupancy is detected,
the sensor signals a building control system which then either turns devices on, such as
heating or air conditioning, or increases their levels. Likewise, when the controlled area is
vacated, the building control system will reduce airflow and fan speed or turn devices off. The
affected building spaces are determined by the preprogramming of the BAS.
Features
The CI sensors feature a user-adjustable time delay which functions through a highly accurate digital timer. The time delay is programmed with a DIP switch and can be set from 30
seconds to 30 minutes. Two levels of sensitivity (minimum or maximum) are also selectable
through the DIP switch. The CI-12 and CI-24 are equipped with a four-level patented Fresnel
lens for superior desktop occupancy detection. Coverage for the sensors can reach 1200
square feet using the Extended Range lens and 500 square feet using the High Density lens
(circular pattern) for walking motion. For typical desktop level activity coverage can reach up
to 300 square feet.
Applications &
Specifications
The CI-12 and CI-24 offer a new and easy way to reduce energy consumption and its related
costs in a large variety of building spaces. By working directly with a Building Automation
System, the cost of purchasing power packs and the cost of labor for power pack installation
is eliminated. Furthermore, the sensors’ low unit cost and reduction in energy consumption
result in fast paybacks.
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Dual-element, temperature compensated pyroelectric sensor
Operates at 12 VDC (CI-12); 24 VAC or 24 VDC (CI-24)
ASIC technology reduces components and enhances reliability
Pulse Count Processing eliminates false offs without reducing sensitivity
Detection Signature Analysis eliminates false triggers; provides immunity to RFI and EMI
Digital time delay adjustment from 30 seconds to 30 minutes
Red LED indicates occupancy detection
3.3" diameter x 2.2" deep (85mm x 56mm), extends approximately 0.36” from ceiling
Multi-level Fresnel lens for superior desktop detection
12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: (858) 578.7887 & (888) GO.INTEC | relevantsolutions.com/inteccontrols
Specifications subject to change without notice. | USA 150702 | Page 2 of 2
Ordering
Information
Catalog No.
Voltage
Current
Coverage* (see below)
CI-12
12 VDC; Extended Range Lens
28 mA
up to 1200 sq ft; 360°
CI-12-1
12 VDC; High Density/Reduced Range Lens
28 mA
up to 500 sq ft; 360°
CI-24
24 VAC or 24 VDC; Extended Range Lens
37 mA
up to 1200 sq ft; 360°
CI-24-1
24 VAC or 24 VDC; High Density/Reduced Range Lens
37 mA
up to 500 sq ft; 360°
All units are white
Wiring
Diagrams
Isolated Relay
Contacts
Cable
Wires
12VDC or 24VAC Supply*
1-Red
Normally Closed Contact
2-Grn
Common
3-Orn
Normally Open Contact
4-Yel
12VDC or 24VAC Return
5-Blk
DIP Switch Control
for Time Delay,
Sensitivity, and
Override
O
N
LED
*CI-12 requires: 12VDC
CI-24 requires: 24VAC
EMS
(or other building
control system)
EMS
Normally Closed Contact
(closed when occupancy
is not detected)
12VDC or
24VAC Supply
12VDC or
24VAC Supply* Red
Normally Open Contact
(closed when occupancy
is detected)
12VDC or
24VAC Return
VAV
12VDC or
24VAC Return
Normally Closed Contact
O
N
Common
Blk
Normally Open Contact
Common
DIP Switch Settings
& Mounting
DIP Switch #
30 seconds
10 minutes
20 minutes
30 minutes
Sensitivity
Minimum
Maximum
1 2 3 4
ON
1
2
3
4
CI-12 and CI-24 Mounting
X X
XO
OX
OO
Ceiling
3" hole
w/ 3-0" mud-ring
O
X
Sheet rock or Acoustic tile
ceiling attachment ring
(bend up & over ceiling)
Rear
housing
O
Normal
X
Override
X=on O=off
Coverage
Front
housing
Extended Range Lens (Standard)
CI-12, CI-24
High Density/Reduced Range Lens
CI-12-1, CI-24-1
24 ft
44 ft
8 ft
8 ft
Typical
desk-top
level
Typical
desk-top
level
22 ft
Pub. No. 4602
13 ft
7 ft 3 ft 0 3 ft 7 ft
13 ft
22 ft
12 ft 9 ft 7 ft 5 ft 3 ft
0
3 ft 5 ft 7 ft 9 ft 12 ft
* Coverage shown is maximum and represents coverage for half-step walking motion. Under ideal conditions, with no barriers or
obstacles, coverage for half-step walking motion can reach up to 1200 sq ft using the Extended Range lens and up to 500 sq ft
using the High Density lens. For typical desktop level of activity, coverage can reach up to 300 sq ft using the High Density lens.
12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: (858) 578.7887 & (888) GO.INTEC | relevantsolutions.com/inteccontrols